Air-gun.



c. F. LEFEVERI.

AIR GUN.

APPLICATION FILED SEPT. 18, 1916-.

Patented Sept. 25, 1917.

2 SHEETS-SHEET I.

@Mr/ea FLe as e/r C. F. LEFEVER.

AIR GUN.

Patented Sept. 25,1917.

2 "MEETS-SHEET 2.

. a Cxr/u F Lafe/er APPLICATICN FILED SEPT-1B, I916.

a 2 i Gu @491 E Q CHARLES F. LEFEVER, 0F PLYMOUTH, MICHIGAN, ASSIGNOR'IO DAISY MANUFAC- TUBING- OOMPANY, OF PLYMOUTH,'1VIICHIGAN, ACORPORATION OF MICHIGAN.

AIR-GUN.

Application'filed September 18, 1916.

c of pump and storage reservoir, and a further feature is the novelconstruction employed for introducing the projectile at the breech ofthe shooting barrel. Still further, the invention comprises variousfeatures of construction as hereinafter set forth.

In the drawings: 1

Figure 1 is an elevation of the gun;

Fig. 2 is a longitudinal section therethrough with the parts in normalposition;

Fig. 3 is a similar view showing the operation of the pump. Y

A is the false barrel, and B is the true or shooting barrel .arrangedparallel .to and above said false barrel. C is an air compressor locatedwithin the false barrel and operated by a suitable pumping mechanism,preferably comprising a handle D and tog gle levers E E and connectinglink F. The compressor C is so constructed as to both compress and storethe compressed air, and to accomplish this with a simple and compactapparatus I have devised the following construction G is an outercylinder, which is directly connected to the link F of the toggle leversand is adapted to be reciprocated longitudinally thereby. His a pistonfor operating in the cylinder Gr. I is a tubular stem for the piston H,which stem forms a storage chamber for the compressed air. J is acheck-valve controlling admission of air from the cylinder G into thetubular stem 1. K is a discharge valve at the opposite end of thetubular stem and 'L is a spring between the valves J and K for yieldablyholding each of the latter to its seat. The stem I is anchored withinthe false barrel by suitable means, such as the pin M, so as to be fixedin position, and the outer end of the stem beyond the valve K isprovided Specification of Letters Patent.

barrel.

Patented Sept. 25, 1917.

Serial No; 120,762.

with a passage N leading to the shooting barrel B. The valve K is alsoprovided with an operating stem 0, which extends outward and is inoperative relation to a trip mechanism P actuated by the trigger Q. Thearrangement is such that when the trigger is pulled the stem 0 will bepressed inward, unseating the valve K and permitting the compressedcharge of air to pass through the passage N into the shooting On theother hand,'when the valve K is seated a reciprocating movement of thehandle D will actuate the toggle levers E E and link F, so as toreciprocate the cylinder G, each rearward stroke compressing a charge ofair therein and forcing it beyond the check-valve J into the storagechamber. A fresh charge of air is admitted into the cylinder G at theouter end of its stroke, through a port G which is uncovered in thisposition.

T o facilitate the loading of the gun, especially where used in theshooting of darts, I have provided a breech-loading mechanism of thefollowing constuction: R is a telescopic portion of the true barrel atthe rear end thereof and S is a handle for moving the portion Rlongitudinally. T is a tubular nipple for engaging the inner end of thebarrel R, said nipple being in direct communication with the passage Nfor the compressed air. By moving the handle S outward, the barrel B maybe withdrawn from the nipple T with suflicient clearance for theinsertion of a dart or other projectile into said nipple, and whenreengaged with the nipple will. form a substantially air-tight joint.This construction permits of quickly inserting the darts aftersuccessive shots, and as the dart is placed in the nipple the full forceof the compressed charge will be directed thereagainst.

WVhat I claim as my invention is:

1. In a gun, a cumulative air compressor, comprising a cylinder andhollow piston, said piston forming the storage chamber, a check-valvecontrolling the admission to said storage chamber, and a trip-valve forcontrolling the discharge therefrom.

2. In a gun, a cumulative air compressor, comprising a cylinder and ahollow piston, means for reciprocating said cylinder, a check-valvecontrolling the passage of air from said cylinder to said hollow piston,a trip-valve at the opposite end of said piston, and a connectingpassage between said trip-valve and the shooting barrel.

3. In a gun, the combination with a false barrel, of a cumulative aircompressor there in, comprising a cylinder slidable within said falsebarrel, a hollow piston within said cylinder, a check-valve controllingcommunication between said cylinder and hollow piston, a trip-valve atthe opposite end of said hollow piston, a trigger, a connection betweensaid trigger and trip-valve, a shooting barrel, and an air passagebetween said shootingbarrel and said trip-valve.

4. In an air gun, the combination with a false barrel, of a cumulativeair compressor therein, comprising a cylinder adapted for reciprocationwithin said false barrel, a stationary hollow piston anchored withinsaid false barrel and in engagement with said cylinder, aconnectionbetween the outer end of said piston and the shooting barrel, acheck-valve controlling communication be tween said cylinder and hollowpiston, a trip-valve controlling connection between said hollow pistonand shooting barrel, and a trigger mechanism for actuating saidtrip-valve.

5. In an air gun, a cumulative air compressor comprising a reciprocatingcylinder, a piston for said cylinder having a hollow stem constitutingan air storage chamber, a

cheek-valve controlling communication between said cylinder and hollowstem, a connection between the opposite end of said hol- Copies of thispatent may be obtained for actuating stem, a trigger, and a rodconnected to said trigger for engaging the stem of said outer valve totrip the same.

7. In a gun, the combination with an air compressor, of a shootingbarrel having a telescopically-movable section, and a tubular nipple forengaging said telescopicallyrmovable section, forming a receiver for theprojectile, said nipple being connected to the air-compressing means. i

8. In a gun, the combination with an air. compression cylinder, of ashooting barrel arranged parallel thereto and having atelescopically-movable section, and a fitting connecting saidair-compressing cylinder with said shooting barrel, having a tubularnipple for telescopically engaging said section, said nipple forming areceiver for the projectile. v

In testimony whereof I affix my'signature.

CHARLES F. LEFEVER.

five cents each, by addressing the Commissioner of Patents, Washington,D. 0.?

